Problems With Using Deen/Temporal and Spatial Smoothing

This forum is for questions and discussion of all the aspects of handling and cleaning up your footage with Avisynth.
Locked
User avatar
Melichan923
Joined: Tue May 30, 2006 8:21 am
Location: New Hampshire
Contact:
Org Profile

Problems With Using Deen/Temporal and Spatial Smoothing

Post by Melichan923 » Sat Apr 26, 2008 4:48 pm

I noticed some problems on a couple of DVDs I was trying to clean and I had no idea what was causing the problem. Today I think I realized Deen() and other filters to help with the noise were actually hurting my footage for some reason instead of helping it and the settings are fairly light too. I tested this out in three ways. First I took a screen cap of the footage with no filtering. Second, a screen cap with separate spatial and temporal cleaners instead of the deen. Third, a screen cap with Deen for the smoothing. Here are the results:

No Temporal/Spatial Cleaner:

Image

You can see the noise in lots of places in the picture,those tiny dots everywhere: in his hair, on his face, in the sky. It does need smoothing.

Undot() and TemporalCleaner():

Image

This gave me pretty good results. A lot of the noise has disappeared. (Only in this scene though... some get pretty bad).

Deen("w3d",3,3,5):

Image

Look at his hair and the space in-between his nose and eyes. See the splotches of color/banding?

Keep in mind this is just one of the frames though: some of them are pretty bad. I tried different strengths for Deen and it still shows like in the picture above. (It isn't even just this anime series either. I've noticed it before. I just now realized what was causing this problem) It shows up a lot in darker areas and is clearly visible while watching.

Here is a really bad frame during a fade with temporalcleaner() and undot():

Image

Any ideas how I can fix this? (Maybe I am just being too picky), but that last one looks very bad. Maybe I am better off leaving spatial and temporal cleaners out?

Thanks for reading this. I hope all those large pictures didn't make anyone with a slow connection want to kill me. :sweat:

(Expect a thread soon made by me about problems regarding this DVD in general. I'm having much difficulty helping some scenes Like this one. Very, very stubborn interlacing, mosquito noise, funky colors, the works.)
Image
Image Image

User avatar
Zarxrax
Joined: Sun Apr 01, 2001 6:37 pm
Contact:
Org Profile

Post by Zarxrax » Sat Apr 26, 2008 5:59 pm

Try the ttempsmooth filter.

Also, have you enabled deblocking in the mpeg2source line? cpu=4 or cpu=6

User avatar
Melichan923
Joined: Tue May 30, 2006 8:21 am
Location: New Hampshire
Contact:
Org Profile

Post by Melichan923 » Sat Apr 26, 2008 6:54 pm

Zarxrax wrote:Try the ttempsmooth filter.

Also, have you enabled deblocking in the mpeg2source line? cpu=4 or cpu=6
Thank you!! Ttempsmooth made it look much better! :D I hadn't put in cpu=4 or cpu=6 with Temporalcleaner and Undot because for some reason it made the blocking look worse. :? With both the new one you suggested and the Undot filter, cpu=4 does help out with the smoothing like it's supposed to.

End result:

Image

Thanks!
Image
Image Image

Locked

Return to “AviSynth Help”